louvered grille
RES
Complete set with a louvered grille is used when it is necessary to completely close the inner part of the damper and when there are no strict decorative requirements for external design.
Serves to protect against unauthorized access to the damper and its actuator, as well as to prevent external mechanical impact and ingress of foreign objects.
Can be used as part of any fi re or smoke damper of rectangular crosssection, including sectional design version.